JPS62295501A - Vplane antenna - Google Patents
Vplane antennaInfo
- Publication number
- JPS62295501A JPS62295501A JP13896786A JP13896786A JPS62295501A JP S62295501 A JPS62295501 A JP S62295501A JP 13896786 A JP13896786 A JP 13896786A JP 13896786 A JP13896786 A JP 13896786A JP S62295501 A JPS62295501 A JP S62295501A
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- dielectric base
- ground conductor
- dielectric substrate
- conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims description 23
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 230000005855 radiation Effects 0.000 abstract description 13
- 230000006866 deterioration Effects 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 5
- 239000003989 dielectric material Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0075—Stripline fed arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/206—Microstrip transmission line antennas
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
［技術分野１
本発明は、放送衛星から送信されるマイクロ波を受信す
る平面アンテナに関するものである。Detailed Description of the Invention 3. Detailed Description of the Invention [Technical Field 1] The present invention relates to a flat antenna that receives microwaves transmitted from a broadcasting satellite.
［背景技術１
最近では赤道−Ｆ空３６０００Ｋａ＋付近の静止衛星を
利用してＳ ＨＦ帯の電波による衛星放送が実用化され
ており、日本においては放送衛星から送Ｍされる右旋円
偏波となっている。この円偏波を受信するには、アンテ
ナを赤道方向、すなわち、日本においては南西方向に向
けて設置する必要があるから、太陽熱によりアンテナが
加熱されることになる。特に、設置の容易さなどの理由
から最近では平面アンテナが用いられるようになってき
ているが、平面アンテナはケーシング内に納装すること
があり、この場合にはアンテナが着しく加熱されること
になる。このような平面アンテナでは、基板と基板に設
けた導体との熱膨張率の差により、基板に反りが生じ、
アンテナゲインが低下するという問題が生じる。また、
ポリエチレンのような軟化温度の低い誘電体を基板に用
いでいる場合には、誘電体自身の特性が劣化し、アンテ
ナゲインが低下するという問題が生じる。[Background technology 1] Recently, satellite broadcasting using SHF band radio waves has been put into practical use using geostationary satellites near the equator-F sky of 36,000 Ka+, and in Japan, right-handed circularly polarized waves and It has become. In order to receive this circularly polarized wave, it is necessary to install the antenna toward the equator, that is, toward the southwest in Japan, so the antenna will be heated by solar heat. In particular, flat antennas have recently come into use for reasons such as ease of installation, but flat antennas are sometimes housed inside a casing, and in this case, the antenna may be heated too much. become. In such a planar antenna, the substrate warps due to the difference in thermal expansion coefficient between the substrate and the conductor provided on the substrate.
A problem arises in that the antenna gain decreases. Also,
When a dielectric material with a low softening temperature such as polyethylene is used for the substrate, a problem arises in that the characteristics of the dielectric material itself deteriorates and the antenna gain decreases.
［発明の目的］
本発明は上述の点に鑑みて為されたものであって、その
目的とするところは、加熱による誘電体基板の反りや特
性劣化をできるだけ防止し、もってアンテナゲインの低
下を防止した平面アンテナを提供することにある。[Object of the Invention] The present invention has been made in view of the above points, and its purpose is to prevent as much as possible the warpage and characteristic deterioration of the dielectric substrate due to heating, thereby reducing the decrease in antenna gain. An object of the present invention is to provide a planar antenna that prevents the above-mentioned problems.
［発明の開示１
本発明に係る平面アンテナは、表面にアンテナパターン
を有する誘電体基板の裏面に地導体を有し、地導体側に
放熱部が設けられたことを特徴とするものであり、この
構成により、アンテナの温度上昇を抑制している。[Disclosure 1 of the Invention The planar antenna according to the present invention is characterized in that it has a ground conductor on the back side of a dielectric substrate having an antenna pattern on its surface, and a heat dissipation part is provided on the side of the ground conductor, This configuration suppresses the rise in temperature of the antenna.
（実施例１）
第１図に示すように、矩形状の誘電体基板１の表面にア
ンテナパターンとしてのマイクロストリップライン導体
２が設けられるとともに、誘電体基板１の裏面に地導体
３が設けられることにより、マイクロストリップライン
平面アンテナが形成される。地導体３側には、放熱部と
なる放熱フィン４が誘電体基板１の周辺に沿う一方向に
走るように形成される。(Example 1) As shown in FIG. 1, a microstrip line conductor 2 as an antenna pattern is provided on the surface of a rectangular dielectric substrate 1, and a ground conductor 3 is provided on the back surface of the dielectric substrate 1. As a result, a microstrip line planar antenna is formed. On the ground conductor 3 side, a radiation fin 4 serving as a heat radiation part is formed so as to run in one direction along the periphery of the dielectric substrate 1.
しかるに、この平面アンテナは太陽熱により加熱されで
も放熱フィン４の存在により温度上昇が抑制されるので
あり、誘電体基板１が反ったり、誘電体基板１の特性が
劣化したりすることが防止されるのである。その結果、
アンテナゲインの低下が防止される。However, even if this planar antenna is heated by solar heat, the temperature rise is suppressed by the presence of the radiation fins 4, and the dielectric substrate 1 is prevented from warping or the characteristics of the dielectric substrate 1 from deteriorating. It is. the result,
A decrease in antenna gain is prevented.
（実施例２）
本実施例では、第２図に示すように、誘電体基板１の中
央部の放熱フィン４と両端部の放熱フィン４とが互いに
直交する方向に走るように形成される。この構成により
、放熱フィン２が誘電体基板１を補強することになり、
誘電体基板１の反りが一層よく防止されるのである。放
熱フィン４の配列方向としては、第３図に示すように、
誘電体基板１の対角線方向に沿う方向としてもよく、こ
の場合にも、誘電体基板１の各部で放熱フィン４が互い
に異なる方向に走るように形成することにより、放熱フ
ィン４で誘電体基板１を補強している。(Example 2) In this example, as shown in FIG. 2, the radiation fins 4 at the center of the dielectric substrate 1 and the radiation fins 4 at both ends are formed to run in directions orthogonal to each other. With this configuration, the radiation fins 2 reinforce the dielectric substrate 1,
Warpage of the dielectric substrate 1 is further prevented. The arrangement direction of the radiation fins 4 is as shown in FIG.
The direction may be along the diagonal line of the dielectric substrate 1. In this case as well, by forming the radiation fins 4 to run in different directions in each part of the dielectric substrate 1, the radiation fins 4 can move the dielectric substrate 1. is reinforced.
（実施例３）
本実施例では、第４図に示すように、地導体３となる金
属板の表面（第４図の下面）に凹凸を形成して、地導体
３の表面積を大きくし、もって地導体３自身を放熱部と
している。この構成により、放熱フィン４を新たに設け
ることなく誘電体基板１の温度上昇を抑制することがで
きる。(Example 3) In this example, as shown in FIG. 4, unevenness is formed on the surface of the metal plate that becomes the ground conductor 3 (lower surface in FIG. 4) to increase the surface area of the ground conductor 3. Therefore, the ground conductor 3 itself serves as a heat dissipation section. With this configuration, it is possible to suppress the temperature rise of the dielectric substrate 1 without newly providing the radiation fins 4.
［発明の効果１
本発明は上述のように、表面にアンテナパターンを有す
る誘電体基板の裏面に地導体を有し、地＝３−
導体側に放熱部が設けられているので、太陽熱により加
熱されても、放熱部の存在により温度上昇が抑制される
のであり、誘電体基板に反りが発生したり、誘電体基板
の特性が劣化することが少なくなるのであり、その結果
、アンテナゲインの低下が防止されるのである。[Effect of the invention 1 As described above, the present invention has a ground conductor on the back side of a dielectric substrate having an antenna pattern on its surface, and a heat dissipation part is provided on the ground = 3- conductor side, so it can be heated by solar heat. However, the temperature rise is suppressed by the presence of the heat dissipation section, which reduces the occurrence of warping of the dielectric substrate and the deterioration of the characteristics of the dielectric substrate.As a result, the antenna gain decreases. is prevented.
第１図は本発明の実施例１を示す斜視図、第２図および
第３図は本発明の実施例２を示す背面側の斜視図、第４
図は本発明の実施例３を示す斜視図である。
１は誘電体基板、２はマイクロストリップライン導体、
３は地導体、４は放熱フィンである。FIG. 1 is a perspective view showing a first embodiment of the present invention, FIGS. 2 and 3 are rear perspective views showing a second embodiment of the present invention, and FIG.
The figure is a perspective view showing Embodiment 3 of the present invention. 1 is a dielectric substrate, 2 is a microstrip line conductor,
3 is a ground conductor, and 4 is a radiation fin.
Claims (1)
面に地導体を有し、地導体側に放熱部が設けられたこと
を特徴とする平面アンテナ。(1) A planar antenna characterized in that it has a ground conductor on the back side of a dielectric substrate having an antenna pattern on its surface, and a heat dissipation section is provided on the side of the ground conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13896786A JPS62295501A (en) | 1986-06-14 | 1986-06-14 | Vplane antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13896786A JPS62295501A (en) | 1986-06-14 | 1986-06-14 | Vplane antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62295501A true JPS62295501A (en) | 1987-12-22 |
Family
ID=15234362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13896786A Pending JPS62295501A (en) | 1986-06-14 | 1986-06-14 | Vplane antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62295501A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0511516U (en) * | 1991-07-30 | 1993-02-12 | 八木アンテナ株式会社 | Antenna device for satellite communication |
| FR2710195A1 (en) * | 1993-09-14 | 1995-03-24 | Thomson Csf | Antenna-electronic circuit assembly |
| EP1291960A2 (en) * | 2001-08-28 | 2003-03-12 | Kabushiki Kaisha Toshiba | Antenna with heat sink |
| CN109155452A (en) * | 2016-05-24 | 2019-01-04 | 德州仪器公司 | High frequency antenna structure with high heat conductance and high surface area |
-
1986
- 1986-06-14 JP JP13896786A patent/JPS62295501A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0511516U (en) * | 1991-07-30 | 1993-02-12 | 八木アンテナ株式会社 | Antenna device for satellite communication |
| FR2710195A1 (en) * | 1993-09-14 | 1995-03-24 | Thomson Csf | Antenna-electronic circuit assembly |
| EP1291960A2 (en) * | 2001-08-28 | 2003-03-12 | Kabushiki Kaisha Toshiba | Antenna with heat sink |
| EP1291960A3 (en) * | 2001-08-28 | 2004-01-07 | Kabushiki Kaisha Toshiba | Antenna with heat sink |
| CN109155452A (en) * | 2016-05-24 | 2019-01-04 | 德州仪器公司 | High frequency antenna structure with high heat conductance and high surface area |
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